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Finding the Fourth Proportional to 6,427, 9,625.38 and 5,393.64

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Solution

The fourth proportional to 6,427, 9,625.38 and 5,393.64 is: 8,077.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427 : 9,625.38 = 5,393.64 : x
  2. Step 2: Convert to fraction form
    6,427/9,625.38 = 5,393.64/x
  3. Step 3: Cross multiply
    6,427x = 9,625.38 × 5,393.64
  4. Step 4: Simplify right side
    6,427x = 51,915,834.58
  5. Step 5: Solve for x
    x = 51,915,834.58/6,427
  6. Step 6: Final answer
    x = 8,077.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.